Evaluation of Brazilian terrestrial Aspergillus strains for Mycotoxin production
Bibliographic record
Abstract
Screening tests for aflatoxins B1, B2, G1 and G2, ochratoxin A and sterigmatocystin productionwere performed in 13 strains of Aspergillus spp, isolated from the terrestrial environment in the BrazilianAtlantic Rainforest (São Paulo State/Brazil). Coconut agar medium and moistened corn were employed assubstrates. The fungal extracts obtained from both media were submitted to thin-layer chromatography and the toxins were estimated according to the intensity of their fluorescence observed under UV light. None of the tested strains presented any of the mentioned mycotoxins. Because many unknown fluorescent spots were present, it was necessary to proceed a confirmation step using multiple chromatography, two dimensional chromatography and derivatization. In view of the accuracy of the employed methods and thepresence of many unknown fluorescent spots, the need of further studies on the production of others mycotoxins of fungi isolated under tropical conditions is justified.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".